21110201223103 has 2 divisors, whose sum is σ = 21110201223104. Its totient is φ = 21110201223102.

The previous prime is 21110201223091. The next prime is 21110201223107. The reversal of 21110201223103 is 30132210201112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21110201223103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21110201223107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555100611551 + 10555100611552.

It is an arithmetic number, because the mean of its divisors is an integer number (10555100611552).

Almost surely, 2^{21110201223103} is an apocalyptic number.

21110201223103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110201223103 is an equidigital number, since it uses as much as digits as its factorization.

21110201223103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21110201223103 its reverse (30132210201112), we get a palindrome (51242411424215).

The spelling of 21110201223103 in words is "twenty-one trillion, one hundred ten billion, two hundred one million, two hundred twenty-three thousand, one hundred three".